package cz.artin.gemini.shared.domain;

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import javax.persistence.SequenceGenerator;
import java.io.Serializable;

/**
 * @author londrusek | libor.ondrusek@artin.cz
 */
@MappedSuperclass
public abstract class DomainObject implements Serializable {

	private static final long serialVersionUID = 7636130547612581389L;
	
	public static final String SEQ_GENERATOR_NAME = "id_generator";
	
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO, generator = SEQ_GENERATOR_NAME)
	@SequenceGenerator(name = "id_generator", allocationSize = 1, initialValue = 1000)
	@Column(name = "id", nullable = false, unique = true)
	private Long id;

	public Long getId() {
		return id;
	}

	public void setId(Long id) {
		this.id = id;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		DomainObject other = (DomainObject) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}

	@Override
	public String toString() {
		return String.format("%s [id=%s]", getClass().getSimpleName(), id);
	}

}
